Here is a screenshot from the default install of Ubuntu Linux. They have done a really good job with a sexy look and feel, clean graphics, and a quick system. The only changes that I made from the default was to make the task bars translucent. You can click on the image for a 1:1 scale image - but it’s really big.
Edit: So I guess that size does matter. At the request of several of you, I have made the screenshot on the Blog bigger